#Historeum
Layer-2 Chain with a Time-aware EVM
{ Block: Past, Data: "Hello," }
{ Block: Now, Data: "World!" }
A Time-aware EVM is an extension of the Ethereum Virtual Machine,
with added functionalities that allow it to interact with historical on-chain data directly.
Contract Development
bytes memory args = abi.encodePacked(
address(this), // account
slotNumber, // slot number
blockNumber // block number
);
(
bool success, // status
bytes memory result // result (bytes)
) = address(0x13).staticcall(args);
To access historical data on the Historeum, you can invoke precompiled contract 19 (0x13), specifying the account address, slot number, and past block number as parameters.
bytes32 result = caerus(
address(this), // account
slotNumber, // slot number
blockNumber // block number
); Alternatively, you can use the keyword `caerus` to retrieve past data in bytes32 format, utilizing our customized Solidity compiler.
To Access
Historical
Data
On Chain
Features
Archive-powered EVM
Historeum provides direct on-chain access to historical data through the EVM, by Archive Storage.
Solidity Extension
With a Solidity compiler modifications, Historeum enables developers to seamlessly utilize historical data.
Versatile Applicability
Historeum is applicable across various blockchain ecosystems, particullary for reputation and financial services.
Roadmap
| 2024 | 3Q. Launch Historeum L2-chain on Ethereum. |
| 4Q. Employ advanced DB optimization techniques. |
